I am purchasing for an academic institution and require an invoice before purchasing. How do I obtain one? Billy McClennan December 03, 2018 15:02 Updated Follow Please submit a request form and a member of our team will prepare an invoice for you. Related articles Is the Hex sold in retail establishments? What's included in the box? Humon international distributors and resellers Can the web app be used to view data in real-time? I don't live in the US, can I still order the Hex? Comments 0 comments Article is closed for comments.